What color is #1C4E10?

#1C4E10 is a dark green. In RGB it is rgb(28, 78, 16), and in HSL hsl(108, 66%, 18%).

Is #1C4E10 accessible as text?

On white, #1C4E10 has a contrast ratio of 9.78:1 (passes WCAG AA for body text); on black it is 2.15:1 (fails). For text placed on #1C4E10, use white for the best readability.

What is the closest Tailwind color to #1C4E10?

The nearest Tailwind CSS token is green-900 (#0D542B).

What colors go well with #1C4E10?

#1C4E10 pairs cleanly with neutrals — cream, taupe, charcoal and cool grays — and with its complementary #40104C. In UI, a softer accent is often easier to use than the exact complement. Explore the harmonies, shades, tints and ready-made palettes for #1C4E10 below.

Is #1C4E10 good for buttons?

#1C4E10 works well for buttons and highlights, but use white text on #1C4E10 — black text only reaches 2.15:1, below the 4.5:1 needed for normal-size labels.

Is #1C4E10 the same as CSS darkgreen?

No — #1C4E10 is not the CSS named color darkgreen, but darkgreen (#006400) is the closest CSS named color.

#1C4E10 Color — HEX, RGB, HSL, Palette & Shades

Palettes built on #1C4E10

Not just a swatch — here's how #1C4E10 works with other colors. Named schemes with #1C4E10 in its natural role, and a note on why the supporting colors balance it.

Luxury Packaging Feature · 5 colors

Feature #1C4E10 Anchor #141210 Accent #C1A64B Secondary #242B22 Surface #F1EDE3

Castleton Green carries the depth in this luxury scheme, offset by a brass accent and near-black and held together by a deep neutral and an off-white surface.

Botanical Studio Lead · 5 colors

Lead #1C4E10 Secondary #4D6B3B Accent #AE6B00 Surface #EFEAD6 Anchor #3C2F21

Castleton Green leads this botanical set among foliage greens and a terracotta accent, softened by cream and grounded in bark brown.

Moody Editorial Color · 5 colors

Color #1C4E10 Anchor #292A2E Secondary #6C6F74 Surface #EBE6DA Accent #002D14

Castleton Green adds the colour to this moody editorial scheme — charcoal and a mid-grey around it, a bone highlight, and a muted jewel accent drawn from Castleton Green.

Vintage Leather Lead · 5 colors

Lead #1C4E10 Secondary #754E1C Surface #E6DBC0 Accent #3D513F Anchor #5B2322

Castleton Green plays the worn-leather lead, deepened by saddle brown and an oxblood anchor, softened by aged cream and cooled by a muted forest green.

Minimal Editorial Surface · 5 colors

Surface #F7F4EF Accent #1C4E10 Secondary #5D6D59 Support #989286 Ink #17140F

Castleton Green is the single accent in this high-contrast editorial system — set on near-white paper against near-black ink, with a warm grey and a desaturated tint of Castleton Green carrying the quiet middle.

Build a working theme in the generator →

Color Lab

How #1C4E10 actually behaves in design work — read from its OKLCH lightness, chroma and hue, not just its raw numbers. Ten signals to help you decide where this color earns its place.

Warmth 50/100

Neutral

Balanced temperature — flexible, sits between warm and cool schemes.

Softness 33/100

Low

Middle-weight — neither delicate nor heavy.

Depth 62/100

High

Deep and grounding — anchors a layout, strong dark-mode base.

Naturalness 100/100

Very high

Organic, earthy character — at home in wellness, food and craft brands.

Vintage feel 54/100

Moderate

A faint retro warmth without tipping into sepia.

Luxury 68/100

High

Restrained and premium — deep, quiet, high-end packaging and fashion.

Brand distinctiveness 41/100

Moderate

Recognisable but shares space with nearby hues.

UI accent fit 63/100

High

Strong interactive accent — visible and can carry a legible label.

Surface fit 28/100

Low

Too saturated or mid-toned for big areas — keep it to accents.

Print safety 76/100

High

Reproduces faithfully in CMYK — safe for packaging and print.

Pairs with #1C4E10

For UI

For branding

For interior

For fashion

People also use #1C4E10 with

Dark Olive Green British Racing Green Russian Violet Platinum Hunter Green

UI roles & guardrails

Primary action Safe as a filled button with white label. AAA

Body text Passes on white at 16px and above. Pass

Large display Fine for headings 24px+ on white. Pass

Background Pair with white text at 9.8:1. Use

Subtle surface Use #C9E9C1 for cards and hover fills. Tint 80

Avoid beside #104C18 — the hue gap is too small to read as intentional. Clash

In real applications

Not a swatch to memorise — a color to build with. Here is #1C4E10 at work across the surfaces designers actually ship.

Website / UI

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Build faster.

A working theme, generated in seconds.

Dashboard

Revenue

$48.2k ▲ 12%

Brand

AVELINE

Studio

Poster

Nov 14 · 8PM

NIGHT
MARKET

Packaging

BLOOM

Botanical Wash

250 ml

Interior

Every model

Export

:root {
  --color-base: #1C4E10;
  --color-base-rgb: 28 78 16;
  --color-base-oklch: oklch(37.6% 0.106 140.2);
  --color-50: #F4FDF2;
  --color-100: #E2F9DC;
  --color-200: #C6F1BB;
  --color-300: #9EE28D;
  --color-400: #78D062;
  --color-500: #58B540;
  --color-600: #488A38;
  --color-700: #37622D;
  --color-800: #274021;
  --color-900: #192816;
  --color-on-base: #FFFFFF;
}

// tailwind.config.js
colors: {
  castleton-green: {
    50: '#F4FDF2',
    100: '#E2F9DC',
    200: '#C6F1BB',
    300: '#9EE28D',
    400: '#78D062',
    500: '#58B540',
    600: '#488A38',
    700: '#37622D',
    800: '#274021',
    900: '#192816',
  },
}

$base: #1C4E10;
$base-ink: #FFFFFF;
$base-50: #F4FDF2;
$base-100: #E2F9DC;
$base-200: #C6F1BB;
$base-300: #9EE28D;
$base-400: #78D062;
$base-500: #58B540;
$base-600: #488A38;
$base-700: #37622D;
$base-800: #274021;
$base-900: #192816;
$base-hover: #163D0C;
$base-subtle: #ADE0A1;

{
    "color": {
        "base": {
            "value": "#1C4E10",
            "type": "color"
        },
        "onBase": {
            "value": "#FFFFFF",
            "type": "color"
        },
        "scale": {
            "50": {
                "value": "#F4FDF2",
                "type": "color"
            },
            "100": {
                "value": "#E2F9DC",
                "type": "color"
            },
            "200": {
                "value": "#C6F1BB",
                "type": "color"
            },
            "300": {
                "value": "#9EE28D",
                "type": "color"
            },
            "400": {
                "value": "#78D062",
                "type": "color"
            },
            "500": {
                "value": "#58B540",
                "type": "color"
            },
            "600": {
                "value": "#488A38",
                "type": "color"
            },
            "700": {
                "value": "#37622D",
                "type": "color"
            },
            "800": {
                "value": "#274021",
                "type": "color"
            },
            "900": {
                "value": "#192816",
                "type": "color"
            }
        }
    }
}

Palettes built on #1C4E10

Color Lab

Pairs with #1C4E10

UI roles & guardrails

In real applications

Scales

Every model

Export